计量经济分析如何体现其“经济性”特点——以我国农村居民消费行为的模拟实验为例

通过一个简单线性回归模型的实验教学,说明计量经济模型的"经济性"特点表现在:①当利用不同形式的模型可以获得相近的拟合优度与解释能力时,一般倾向于选用"简单"的线性回归模型作为分析的基本工具;②为体现模型的经济含义,计量经济分析会着重使用增加解释变量后的多元线性回归模型,而不是利用基于泰勒定理的简单线性回归模型的主要解释变量高次幂的形式来实现较好的解释能力;③计量模型作为外生变量或内生变量的滞后形式对内生变量本身的影响和控制关系的反映,有时不显著影响的变量比显著性影响的变量、保留不显著的变量比去掉它能够使之在经济与政策含义上更有显著的认识和应用价值。     

对角线裁判制裁判员选位效能研究

采用文献资料法和观察法,就裁判员在对角线裁判制中跑动抢位选位的方法及与判罚准确性之间的关系进行分析研究,提出裁判员培训中要加强选位效能意识的培养。     

Visual and phonological coding in working memory and orthographic skills of deaf children using Chilean sign language

Deaf children can improve their reading skills by learning to use alternative, visual codes such as fingerspelling. A sample of 28 deaf children between the ages of 7 and 16 years was used as an experimental group and another sample of 15 hearing children of similar age and academic level as a control group. Two experiments were carried out to study the possible interactions between phonological and visual codes and working memory, and to understand the relationships between these codes and reading and orthographic achievement. The results highlight the relationship between dactylic and orthographic coding. Just as phoneme-to-grapheme knowledge can facilitate reading for hearing children, fingerspelling-to-grapheme knowledge has the potential to play a similar role for deaf readers.     

面向非相关文献的知识关联检索系统的设计与实现

[目的/意义]面向非相关文献的知识关联能够促进新知识的产生，为科学研究提供了一种有效的辅助手段。[方法/过程]本文以《中国分类主题词表》为主题词受控词表，首先对文献摘要进行中文分词处理并提取主题词，利用计量分析技术和聚类技术分析文献间特征的相似、相异水平，然后基于该系统为用户检索并利用用TOP-K算法反馈用户精确结果。[结果/结论]设计了面向非相关文献的知识关联检索系统，从更细的粒度层面揭示文献之间的知识关联，为用户提供高质量的服务。     

甘肃省市县区域居民心理差异调查研究

采用症状自评量表、男女双性化人格量表、社会支持量表对甘肃省河东河西两地居民进行心理差异调查,结果发现：（1）甘肃省城乡居民心理健康的总体水平较低,总症状指数白银地区显著地大于其它7个地区,天水地区显著地大于酒泉地区 阳性症状痛苦水平白银地区显著地大于武威、定西、张掖、酒泉和平凉五个地区,天水地区显著地大于武威地区,定西地区显著地大于张掖地区 （2）八个地理区域在9个因子上的检验结果均达到显著 （3）八个地理区域居民社会支持在总分、客观支持分和主观支持分上无显著差异,但在对支持的利用度上存在显著差异 （4）八个地理区域除在女性化上的分布差异不显著外,在其它三种性别类型上的分布存在显著差异。     

PBL教学模式在临床病理讨论课中的应用探讨

PBL已逐渐形成一种新的现代课堂教学模式。将其引入到病理学CPC教学实践,对其在CPC教学中的实施过程、效果及存在的问题和注意事项进行分析,得出了PBL教学法确实起到了激发学生学习病理学兴趣和激情、培养学生独立思考及自主学习能力等方面的作用。因此,在CPC教学中,PBL教学法是一种值得推广应用的教学方式。     

Service quality,satisfaction, and behavioral intention in a triathlon event: the different experiences between local and non-local participants

ABSTRACT

Understanding the different experiences between local and non-local participants may help event organizers implement diverse marketing strategies for each segment, which could efficiently improve participants’ experiences of the event. However, little research has compared the experiences between local and non-local participants in sport event settings. This study compares the differences between local and non-local participants in their perceived service quality of a triathlon event, examines the relationships among service quality, satisfaction, and behavioral intention, and explores the role of participants’ residence status in these relationships. Data were collected from participants (N?=?289) in a triathlon event held in Japan. The results indicate that local participants evaluated all service quality dimensions more positively than non-local participants. The course, ambience, achievement, and escape had positive effects on satisfaction, satisfaction had an extensively positive effect on behavioral intention, and the effect of escape on satisfaction differed between local and non-local participants. Our findings identify how local and non-local participants evaluate their event experiences differently and provide practical implications for event organizers.     

Emerging research topics detection with multiple machine learning models

Emerging research topic detection can benefit the research foundations and policy-makers. With the long-term and recent interest in detecting emerging research topics, various approaches are proposed in the literature. Though, there is still a lack of well-established linkages between the clear conceptual definition of emerging research topics and the proposed indicators for operationalization. This work follows the definition by Wang (2018), and several machine learning models are together used to detect and foresight the emerging research topics. Finally, experimental results on gene editing dataset discover three emerging research topics, which make clear that it is feasible to identify emerging research topics with our framework.     

改变职业中专学生"自卑"心理的几点妙招

职业中专学生普遍具有自卑心理.中等职业学校的学生心理、就业特点,要求班级管理首先从帮助学生克服自卑心理入手:改变仪容仪表,塑造美好形象;积极语言暗示,树立良好心态;发挥优点优势,树立自尊自信;储备成功事例,预演胜利情境;洗刷失败阴形,降低追求目标.     

唐山科学发展示范区建设的理论支撑

提出唐山科学发展示范区的建设要以创新发展理论、可持续发展理论、增长极理论、循环经济理论为支撑,探索一条科学发展之路。